Sunglasses Ray-Ban Square Evolve Silver RB1971 9149/AD 54-19 Medium Photochromic Gradient

The diagonal measurement of the display screen, expressed in inches or centimeters. It indicates how large the visual area is from one corner to the opposite corner and helps users compare viewing experiences across devices.

The combined measurement of a glasses lens diameter (in millimeters) and the nose bridge width (also in millimeters). It is expressed as two numbers separated by a hyphen, e.g., "55-18". The first number indicates the lens diameter, while the second indicates the width of the bridge that rests on the nose.

The percentage of alcohol present in an alcoholic beverage, expressed as a proportion of the total liquid volume. It indicates how strong the drink is and helps consumers compare products or comply with legal limits.

Represents the visual tone or hue that characterizes a product’s appearance, whether it is a single solid color, a combination of colors, or a special finish. This attribute helps users identify and compare items based on their aesthetic look.

The shape or silhouette of the eyewear frame, such as Rectangle, Cat‑Eye, Round, etc. It describes the overall geometry that determines how the lenses are mounted and how the glasses fit the wearer.

The colour or combination of colours that a product’s outer frame is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the frame for consumers.

The material used to construct the outer frame of a product, such as metal, plastic, wood, or composite blends. This attribute helps users understand durability, weight, appearance, and suitability for specific applications.

The overall geometric outline of an eyewear frame, such as full‑rim, rimless, half‑rim, or frameless. This attribute helps users quickly identify and compare the visual silhouette of glasses.

Represents the visual tone or hue that characterizes the front surface of a product, whether it is a single solid color, a combination of colors, or a special finish. This attribute helps users identify and compare items based on their aesthetic look.

Indicates the gender or sex classification associated with a product, such as male, female, unisex, or children’s categories. This attribute helps consumers identify items tailored for specific genders or suitable for all.

Indicates whether the product features lenses that change color or opacity when exposed to light, such as photochromic or transition lenses.

Indicates whether the product can be graduated or adjusted, such as a size or angle that can be modified by the user.

The colour or combination of colours that the lenses of a product are available in, expressed as common names such as "Black", "Silver" or descriptive terms like "Grey Gradient". It indicates the visual appearance of the lens surface for consumers.

The diameter of a camera lens measured in millimetres (mm). It indicates the physical size of the optical element and helps determine compatibility with lenses, mounts, and accessories such as filters or hoods.

The classification of a camera lens, indicating its optical design and intended use such as prime, zoom, wide‑angle, telephoto, macro or specialty types (e.g., fisheye, polarizing). It helps buyers understand the lens’s focal range, aperture characteristics, and typical shooting scenarios.

The optical material or treatment applied to the lenses, such as "Polarised", "With mirror coating" or a specific colour/gradient designation. It indicates the visual effect and protective properties of the lens surface.

The type of substance used to manufacture the lenses of a product, such as plastic, crystal, polycarbonate, nylon, or other optical materials. This attribute helps users understand the optical quality, durability, weight, and suitability for different applications.

Indicates whether a device supports port‑mirroring, allowing traffic on one network port to be duplicated and sent to another for monitoring or diagnostic purposes.

The form of packaging used for a product, such as box, blister pack, bag, pallet, or other standard formats that protect and contain the item during shipping and storage.

Indicates whether the product’s lenses are polarized, reducing glare and improving visual clarity in bright conditions.

Indicates whether the product is suitable for use with prescription lenses or can be fitted with prescription eyewear. A value of "Yes" means the product can accommodate prescription lenses, while a value of "No" indicates it cannot.

Represents the numerical value indicating how many times a product can amplify or multiply a base measurement, such as optical zoom or other magnification effects. The value is expressed without units and can be any positive number, including decimals.

A unique identifier that distinguishes a product variant from its base model or other variants within the same product line. It is used to track different configurations, colors, sizes, special editions, or regional versions of a product.

A size designation that identifies the physical dimensions or fit of a product, such as clothing sizes (S, M, L), shoe sizes, or other standardized measurements used to describe how a product fits or is intended for use. The value may be a single size code or a combination of codes separated by slashes.

The linear measurement of the temple arm of an eyewear frame, expressed in a standard unit such as millimetres or inches. It indicates how far the arm extends from the hinge to the outer edge and helps users assess fit and compatibility with different eye shapes.

The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.